conical beam造句

例句与造句

1. Instead of a conical beam, the radar signal was produced in the form of a fan, about 40 degrees wide and 1 degree high.
2. For comparison, in the parabolic type of antenna a feedhorn at the end of a waveguide directs a conical beam of output energy toward the reflector, whence it is focused into a narrow collimated beam.
3. It's difficult to find conical beam in a sentence. 用conical beam造句挺难的